Senior insider sale
Interim CFO at MONOLITHIC POWER SYSTEMS, INC. — senior position signals high conviction
$226.7K
165.00 shares
What this filing means
DEAN ROBERT W II plans to sell 165.00 shares of MONOLITHIC POWER SYSTEMS, INC. valued at approximately $226.7K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 8/25/2026ACC: 0001280452-26-000017
Officer· Interim CFO
Since Feb 2026
165.00
Shares to sell
$226.7K
Approx. market value
32.00
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Time-based restricted stock units
N/A
8/22/2026
32.00Total acquired32.00
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
8/22/2026 | Time-based restricted stock units N/A | 32.00 | — |
| Total | 32.00 | ||
Planned & Completed Dispositions4
Completed
—Completed
Units to sell
6.00
Market value
$8.1K
8/17/2026
—Completed
Units to sell
105.00
Market value
$141.1K
8/5/2026
—Completed
Units to sell
22.00
Market value
$35.9K
5/26/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
32.00
Market value
$41.5K
8/24/2026
Total
Units
165.00
Value
$226.7K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
8/17/2026 | 6.00 | $8.1K | — | Completed |
8/5/2026 | 105.00 | $141.1K | — | Completed |
5/26/2026 | 22.00 | $35.9K | — | Completed |
| Planned — Approximate Date | ||||
8/24/2026 | 32.00 | $41.5K | NASDAQ | Planned |
| Total | 165.00 | $226.7K | ||